I have an Aspire 7739G. How do I turn off the mousepad on the keyboard?

Thank you so much!  A lot of attempts to get tech support from either Acer or Microsoft proved fruitless, but a quick question here led to a quick and surprisingly simple answer.

I'm sorry to hear you're unemployed (so am I, though I do paid pet-sitting when the opportunity arises). In which field are you seeking work?

All the best to you, and thanks again!